Compare 36/2 and 15/21
1st number: 18 0/2, 2nd number: 15/21
36/2 is greater than 15/21
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 2 × 21 = 42,
36/2 = 36 × 21/2 × 21 = 756/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
15/21 = 15 × 2/21 × 2 = 30/42 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 756/42 > 30/42 or 36/2 > 15/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/2 and 15/21 36/2 and 30/21 36/4 and 15/21 36/2 and 15/42 36/2 and 45/21 36/6 and 15/21 36/2 and 15/63 36/2 and 75/21 36/10 and 15/21 36/14 and 15/21